Overlooked Electrocardiographic Lead Reversals Using Artificial Neural Networks
نویسندگان
چکیده
/ 2w0c 0025 Mp 600 Monday Aug 12 09:10 AM EL–AJC (v. 78, 5) 0026 racic tracings. Atrial reversal flow, however, is most important in assessing LV diastolic pressure. Because pulmonary veins are located far from the transducer in the apical 4-chamber view, PV flow assessment by pulsed Doppler TTE is thought to be limited in some cases. Although a recent report suggested that transthoracic measurements are of sufficient quality in PV flow recordings, operator-, patient-, and equipment-related limitations of the transthoracic approach can make the examination difficult and the results of questionable reliability in some cases. Intravenous injection of sonicated albumin provides enhancement of the Doppler flow signals in the left heart chamber. It has been reported that this technique can be used in evaluating aortic stenosis by enhancement of Doppler flow signal through the aortic valve. In the present study, in most of the patients, PV flow signal was enhanced after intravenous injection of sonicated albumin. This result suggests that improved visualization of pulmonary venous flow Doppler signal by intravenous injection of sonicated albumin should be useful in the clinical setting.
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Detection of frequently overlooked electrocardiographic lead reversals using artificial neural networks.
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